EP1272392A1 - Method of packaging a spring unit - Google Patents

Method of packaging a spring unit

Info

Publication number
EP1272392A1
EP1272392A1 EP00980999A EP00980999A EP1272392A1 EP 1272392 A1 EP1272392 A1 EP 1272392A1 EP 00980999 A EP00980999 A EP 00980999A EP 00980999 A EP00980999 A EP 00980999A EP 1272392 A1 EP1272392 A1 EP 1272392A1
Authority
EP
European Patent Office
Prior art keywords
webs
spring unit
web
reverse
insulator material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00980999A
Other languages
German (de)
French (fr)
Other versions
EP1272392A4 (en
EP1272392B1 (en
Inventor
Niels S. Mossbeck
Thomas J. Wells
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
L&P Property Management Co
Original Assignee
L&P Property Management Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by L&P Property Management Co filed Critical L&P Property Management Co
Priority to EP08075210A priority Critical patent/EP1970309A1/en
Priority to EP08075209A priority patent/EP1944238A1/en
Publication of EP1272392A1 publication Critical patent/EP1272392A1/en
Publication of EP1272392A4 publication Critical patent/EP1272392A4/en
Application granted granted Critical
Publication of EP1272392B1 publication Critical patent/EP1272392B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B63/00—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged
    • B65B63/02—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for compressing or compacting articles or materials prior to wrapping or insertion in containers or receptacles
    • B65B63/024—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for compressing or compacting articles or materials prior to wrapping or insertion in containers or receptacles for compressing by winding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/48—Upholstered article making
    • Y10T29/481—Method

Definitions

  • This invention relates to the packaging of springs. More
  • this invention relates to a method of roll-packing plural
  • the spring units are compressed as they are
  • One type of machine known for this purpose has a
  • moveable pressure roller is mounted above the mandrel so as to define
  • spring packaging material has a relatively short life span, albeit longer
  • first and second webs of spring insulator material are first attached to
  • the spring unit has a uniform depth defined by a generally
  • the spring unit has a longitudinal dimension or length defined
  • the method of the present invention comprises providing
  • the first web roll comprises a first web of spring insulator
  • woven or non-woven material wound about a core.
  • the second web roll comprises a second web of spring
  • webs of insulator material have a pair of opposed side edges defining a
  • Each web across its width has a pair of opposed side
  • the first web of insulator material is passed over and
  • the longitudinal dimension of the spring unit is generally parallel
  • the side portions of the first web are bonded or welded
  • the final step in the method of the present invention is to
  • bedding product is compressed and rolled onto a dowel whereafter the
  • bedding product is maintained in this rolled and compressed state for
  • Fig. 1 is a perspective view of a first preferred embodiment
  • Fig. 1 A is a cross-section of Fig. 1 taken along lines 1 A-
  • Fig. 2 is a side view of a bedding product being roll
  • Fig. 3 is a perspective view of a second preferred embodiment
  • Fig. 3A is a cross-sectional view of Fig. 3 taken along
  • unit 1 0 generally has a top or first surface 1 2 and a bottom or second
  • the spring unit 10 has a length or a longitudinal
  • dimension L being generally larger than the transverse dimension D.
  • the spring unit 1 0 has a
  • the spring unit 1 0 is generally comprised of a plurality of
  • each coil spring 20 has a top turn
  • the first surface 1 2 and the second surface 1 4 are identical to The first surface 1 2 and the second surface 1 4.
  • the insulator material used to cover the first and second
  • Each of the first and second webs 26, 28 have an
  • first and second webs 26, 28 being located against the first and
  • webs 26, 28 has a center portion 34 and opposed side portions 36,
  • Each of the first and second webs 26, 28 has a substantially
  • first and second cores 40, 42 which allow the first and second webs
  • the first and second webs 26, 28 are
  • rollers 44, 46 being spaced apart from each other so that spring unit
  • a conveyor 48 transports the
  • the spring unit 1 0 having
  • the first and second webs 26, 28 located thereagainst is then passed to a folding unit 54 which folds the reverse side 32 of the side
  • side portions 38 are a mirror image thereof
  • first webs 26, 28 may be accomplished by any suitable welding
  • the roll packing machine 60 has a plurality of rollers 62
  • webs 26, 28 attached permanently thereto comprises a bedding or
  • seating product 68 ready for shipment, for example, from a spring
  • packing machine 60 compresses the bedding or seating product 68 so
  • plural bedding or seating products 68 may be so packaged.
  • the insulator material permanently secured to its top and bottom sides is than ready for application of the appropriate padding and upholstry

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)
  • Buffer Packaging (AREA)
  • Packaging Of Machine Parts And Wound Products (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Sealing Devices (AREA)
  • Packages (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Packaging Of Special Articles (AREA)

Abstract

A method of packaging a spring unit (10) of plural coil springs (20) for use in a mattress in which first (26) and second (28) webs of spring insulator material are fixedly located against the top (12) and bottom (14) surfaces of a spring unit (10). The longitudinal margins (36, 38) are either respectively folded around the top (22) and bottom boils (24) and secured to itself, or matched up with the respective margin of the opposite web and secured to it by ultrasonic welding, bonding, etc. The spring units (10) are then compressed by roll-packing (60) so as to substantially reduce the shipping volume.

Description

METHOD OF PACKAGING A SPRING UNIT
Field of the Invention
This invention relates to the packaging of springs. More
specifically, this invention relates to a method of roll-packing plural
spring units.
Background of the Invention
It is known in the art to pack spring units for use in
making mattresses by winding a length of flexible web material, e.g.,
disposable paper or re-usable hessian around a mandrel and feeding the
spring units successively into the nip between the growing roll and the
traveling web material. The spring units are compressed as they are
drawn into the roll, and the result is that the roll-packed springs have a much reduced volume as compared to conventionally stacked spring
units.
One type of machine known for this purpose has a
winding mandrel to which a holding bar is bolted by its ends for
holding the leading end of a packing web material. An upwardly
moveable pressure roller is mounted above the mandrel so as to define
therewith an entry nip for the web material. The web material is fed
from a reel supported at the rear of the machine over the pressure
roller and on to the mandrel. An operator standing at the front of the
machine feeds springs into the entry nip.
Another machine for packing bedding springs is seen in
U.S. Patent No. 4,669,247. The '247 patent describes packing spring
units into a roll with a web of paper or other reusable material. A
similar spring packing machine is seen in U.S. Patent No. 2, 1 1 4,008,
in which a roll of wrapping paper is fed along a table and into a
wrapping mechanism whereat spring assemblies are placed upon the
paper and fed into the machine by the paper movement.
All of these prior art machines compress and wrap springs
in a single web of paper or reusable material which separates the
multiple layers of spring units in a roll and maintains the springs in a
compressed state for shipment from a spring manufacturer to a mattress manufacturer. This conventional roll packing technique tends
to be expensive. Either large amounts of paper that will be eventually
disposed of are used to wrap springs at a cost to the spring
manufacturer which is often passed on to the mattress manufacturer,
or much more expensive recyclable packaging is used to roll and ship
springs. The recyclable material which is used to roll and ship springs
must be thereafter shipped back to the spring manufacturer who,
again, may incur the cost of shipping back the material and may pass
that expense on to the mattress manufacturer. In addition, recyclable
spring packaging material has a relatively short life span, albeit longer
than paper packaging.
Objectives of the Invention
Therefore, it has been one objective of the present
invention to reduce the cost of packaging and shipment of spring units.
It has been another objective of the present invention to
provide a method of packaging spring units without using conventional
paper or reusable packaging methods.
It has been a further objective of the present invention to
provide a method of packaging a spring unit in which the spring unit is
packaged in insulator material that will not be disposed of but, rather,
be used by the mattress manufacturer in mattress production. Summary of The Invention
The preferred embodiments of the present invention
accomplish these objectives with a method of packaging a resilient
spring unit such as a plurality of interconnected coil springs in which
first and second webs of spring insulator material are first attached to
the spring unit so as to be located against the spring unit top and
bottom surfaces and thereafter roll-packed for shipment from a spring
manufacturer to a mattress manufacturer who simply unrolls the spring
units and cuts the insulator material between the spring units, the
spring units having the insulator material attached thereto to be used in
mattress manufacture so as to eliminate the need to roll-pack the
spring units with disposable paper or expensive reusable material.
The spring unit has a uniform depth defined by a generally
planar top first surface and a parallel generally planar bottom second
surface. The spring unit has a longitudinal dimension or length defined
by a pair of opposed parallel end surfaces and a transverse dimension
or width defined by a pair of opposed parallel side surfaces. The
longitudinal dimension or length is generally greater than the transverse
dimension or width of the spring unit as in most bedding products.
However, a square spring unit in which the longitudinal and transverse dimensions are equal may also be packaged using this inventive
method.
The method of the present invention comprises providing
first and second web rolls of insulator material spaced from one
another. The first web roll comprises a first web of spring insulator
material, e.g., woven or non-woven material, wound about a core.
Similarly, the second web roll comprises a second web of spring
insulator material wound about a core. Each of the first and second
webs of insulator material have a pair of opposed side edges defining a
width of the web which is wider than the spring unit's transverse
dimension. Each web across its width has a pair of opposed side
portions and a central portion between the side portions.
The first web of insulator material is passed over and
located against the first surface of the spring unit, and the second web
is passed under and located against the second surface of the spring
unit. The longitudinal dimension of the spring unit is generally parallel
to the opposed side edges of the first and second webs which are
generally parallel to one another.
In a first preferred embodiment, the first and second webs
are folded back upon themselves around the top and bottom turns of
the edgemost coil springs of the spring unit so that the opposed side portions are located against the surface of the central portion located
against the spring unit. These side portions are then bonded, welded
or otherwise secured to the central portion. In a second preferred
embodiment, the side portions of the first web are bonded or welded
to the adjacent side portions of the second web so as to form a tight
fitting sleeve in which the spring unit is securely located. The spring
unit with the first and second webs secured thereagainst constitutes a
bedding product.
The final step in the method of the present invention is to
draw the bedding product into a roll packing machine in which the
bedding product is compressed and rolled onto a dowel whereafter the
bedding product is maintained in this rolled and compressed state for
shipment to a mattress manufacturer.
These and other objectives and advantages of this
invention will be readily apparent from the following brief description
of the drawings.
Brief Description of the Drawings
Fig. 1 is a perspective view of a first preferred
embodiment of the present inventive method of packaging a resilient
spring unit; Fig. 1 A is a cross-section of Fig. 1 taken along lines 1 A-
1 A;
Fig. 2 is a side view of a bedding product being roll
packed;
Fig. 3 is a perspective view of a second preferred
embodiment of the present inventive method; and
Fig. 3A is a cross-sectional view of Fig. 3 taken along
lines 3A-3A.
Detailed Description of the Preferred Embodiment
As can be seen generally in Figs. 1 , 1 A, 3, 3A, a spring
unit 1 0 generally has a top or first surface 1 2 and a bottom or second
surface 14. The spring unit 10 has a length or a longitudinal
dimension L and a width or a transverse dimension D, the longitudinal
dimension L being generally larger than the transverse dimension D.
However, it will be appreciated by those in the art that L may be
substantially similar to D in dimension. The spring unit 1 0 has a
thickness T between the first surface 1 2 and the second surface 14
which defines opposing end surfaces 1 6a, 1 6b and opposing side
surfaces 1 8a, 1 8b.
The spring unit 1 0 is generally comprised of a plurality of
coil springs 20, the coil springs 20 being secured one to another by means generally known in the art. Each coil spring 20 has a top turn
22 comprising a portion of the first surface 1 2 and a bottom turn 24
comprising a portion of the second surface 1 4.
The first surface 1 2 and the second surface 1 4 are
covered with first and second webs 26, 28, respectively, of insulator
material. The insulator material used to cover the first and second
surfaces 1 2, 1 4 of the spring unit 1 0 is generally a woven or non-
woven material. Each of the first and second webs 26, 28 have an
obverse side 30 and a reverse side 32, the reverse side 32 of each of
the first and second webs 26, 28 being located against the first and
second surfaces 1 2, 1 4 of the spring unit 1 0, respectively.
As seen in Figs. 1 A and 3A, each of the first and second
webs 26, 28 has a center portion 34 and opposed side portions 36,
38. Each of the first and second webs 26, 28 has a substantially
similar width W larger than the transverse dimension D of the spring
unit 1 0 so that the opposed side portions 36, 38 generally extend
beyond the transverse dimension D of the spring unit 10 in
substantially equal amounts. The lengths (not indicated) of the first
and second webs 26, 28 are considerably longer than the longitudinal
dimension L of a single spring unit 1 0 so that plural spring units 10 may be packaged by the inventive method described in further detail
below.
In the present inventive method of packaging a spring
unit 1 0, the first and second webs 26, 28 are carried upon respective
first and second cores 40, 42 which allow the first and second webs
26, 28 to be drawn therefrom in reverse directions as indicated by
directional arrows 40a, 42a. The first and second webs 26, 28 are
drawn between respective first and second guide rollers 44, 46, the
rollers 44, 46 being spaced apart from each other so that spring unit
1 0 may be received therebetween. A conveyor 48 transports the
spring unit 1 0 by directional arrow 48a into a space 50 defined
between the first and second rollers 44, 46 whereat the first and
second webs 26, 28 are passed over and under and located against
the first and second surfaces 1 2, 1 4, respectively, of the spring unit
1 0.
In a first preferred embodiment, after the first and second
webs 26, 28 are located against the respective first and second
surfaces 1 2, 1 4 of the spring unit 1 0, an adhesive unit 52 deposits
adhesive 56 upon the reverse side 32 of the side portions 36, 38 of
each of the first and second webs 26, 28. The spring unit 1 0 having
the first and second webs 26, 28 located thereagainst is then passed to a folding unit 54 which folds the reverse side 32 of the side
portions 36, 38 of each of the first and second webs 26, 28 with the
adhesive 56 deposited thereon against the reverse side 32 of the
respective center portion 34 and against the top and bottom turns 22,
24 of the coil springs 20 comprising the longitudinal margins of the
spring unit 1 0.
As seen in Figs 3 and 3A, in a second preferred
embodiment, after the first and second webs 26, 28 are located
against respective first and second surfaces 1 2, 1 4 of the spring unit
1 0, the spring unit 1 0 with the first and second webs 26, 28 located
thereagainst is passed to a welding unit 58 whereat the reverse sides
32 of the opposed side portions 36 of the first web 26 are welded to
the adjacent side portions 36 of the second web 28. While only side
portions 36 of the first and second webs 26, 28 are shown in Fig 3A,
it will be understood that side portions 38 are a mirror image thereof
and are welded in a similar manner. The welding together of the first
and second webs 26, 28 may be accomplished by any suitable welding
process for woven or non-woven materials known in the art, e.g.,
ultrasonic or radio frequency welding, to create a weld 58a, as seen in
Fig. 3A. After the first and second webs 26, 28 have been fixedly
located against the first and second surfaces 1 2, 14 of the spring unit
1 0 by either the gluing or the welding methods as described above, the
spring unit 1 0 with the first and second webs 26, 28 located
thereagainst is then passed to a roll packing machine 60 as best seen
in Fig. 2. The roll packing machine 60 has a plurality of rollers 62
which carry thereon an endless belt 64 traveling in a direction indicated
by directional arrow 64a. The spring unit 1 0 with the first and second
webs 26, 28 attached permanently thereto comprises a bedding or
seating product 68 ready for shipment, for example, from a spring
manufacturer to a mattress or seat manufacturer. As the product 68
is wound about a core 70 upon which it is to be transported, the roll
packing machine 60 compresses the bedding or seating product 68 so
that plural bedding or seating products 68 may be so packaged.
When the packaged roll of bedding or seating units 68
arrive at the mattress or seat manufacturer's facility, all that the
manufacturer need do is unroll the packaged products from the roll and
transverse cut the webs 26, 28 at a location between the spaced
spring units 1 0. The resulting bedding or seating product 68 having
the insulator material permanently secured to its top and bottom sides is than ready for application of the appropriate padding and upholstry
materials to complete the mattress or seat.
From the above disclosure of the detailed description of
the present invention and the preceding summary of the preferred
embodiment, those skilled in the art will comprehend the various
modifications to which the present invention is susceptible. Therefore,
I desire to be limited only by the scope of the following claims and
equivalents thereof. I claim:

Claims

1 . A method of packaging a spring unit having a generally
planar first surface and a parallel generally planar second surface, said
method comprising the steps of:
providing first and second webs of insulator material each
having a generally uniform width, a pair of opposing side portions, a
center portion, and obverse and reverse surfaces;
locating said first and second webs against said first and
second surfaces, respectively, of said spring unit;
permanently securing said first and second webs against
said first and second surfaces, respectively, whereby said spring unit
with said first and second webs secured thereto constitutes a bedding
product; and
roll packing said bedding product.
2. The method of claim 1 , wherein said spring unit is
comprised of a plurality of coil springs having top and bottom turns,
the method comprising the steps of:
folding each of said first and second web side portions
around the adjacent said top and bottom coils, respectively, so that
said reverse surface of each of said side portions is folded back upon
said reverse side of said respective center portion; and securing said reverse side of said side portions to said
reverse side of said respective center portion.
3. The method of claim 2, comprising the step of adhesively
bonding said reverse side of said side portions to said reverse side of
said respective center portion.
4. The method of claim 1 , further comprising the step of
securing said reverse side of each of said side portions of said first
web to the adjacent said second web side portion.
5. The method of claim 1 , further comprising the steps of:
providing first and second web rolls carrying said first and
second webs of insulator material, respectively; and
passing said first and second webs of insulator material
between respective first and second rollers before passing said first
and second webs over said first and second surfaces, respectively, of
said spring unit.
6. A method of packaging a spring unit, said spring unit
having a generally planar first surface, a generally planar second
surface, a longitudinal dimension and a transverse dimension, said
method comprising the steps of:
providing first and second web rolls of insulator material,
each of said web rolls comprising a web of insulator material carried
upon a core, each of said webs of insulator material having obverse
and reverse sides, and opposed side edges defining a width of said
web, said width being larger than said spring unit's transverse
dimension, each of said webs having opposed side portions and a
central portion between said side portions across said width of said
web;
passing said first and second webs of insulator material
transversely past said first and second surfaces, respectively, of said
spring unit, said spring unit being oriented such that said transverse
dimension of said spring unit is generally perpendicular to said opposed
side edges of said webs;
locating said first and second webs against said first and
second surfaces, respectively, of said spring unit so that each of said
opposed side edges of each of said first and second webs extend
beyond said transverse dimension of said spring unit; securing said first and second webs to said spring unit so
that said reverse sides of said central portion of each of said first and
second webs lay against said first and second surfaces, respectively of
said spring unit, whereby said spring unit with said first and second
webs secured thereto constitutes a bedding product; and
roll packing said bedding product.
7. The method of claim 6, wherein said spring unit is
comprised of a plurality of coil springs, each having a top turn and a
bottom turn, the method further comprising the steps of:
folding said side portions of each of said first and second
webs around the adjacent said top and bottom turns, respectively, of
said coil springs which comprise margins of said spring unit along said
spring unit's longitudinal dimension so that said reverse surface of said
side portion is folded back upon said reverse side of said respective
center portion; and
adhesively bonding said reverse sides of each of said side
portions of each of said first and second webs to said reverse side of
the respective said central portion of each of said first and second
webs.
8. The method of claim 6, further comprising the steps of:
locating said reverse side of one of said first webs' side
portions against said reverse side of the adjacent said second webs'
side portion; and
welding said first web side portion to the adjacent said
second web side portion.
9. The method of claim 6, further comprising the step of
passing said first and second webs of insulator material between
parallel rollers before passing said webs past said first and second
surfaces of said spring unit.
1 0. The method of claim 9, wherein said parallel rollers rotate
in opposite directions as said webs are being passed past said spring
unit.
1 1 . The method of claim 6, wherein said web rolls rotate in
opposite directions as said webs are being passed past said spring
unit.
1 2. A method of packaging a spring unit, said spring unit
having a generally planar first surface, a generally planar second
surface, a longitudinal dimension and a transverse dimension, said
spring unit being comprised of a plurality of coil springs each of which
having a top turn and a bottom turn, said method comprising the steps
of:
providing first and second web rolls of insulator material,
each of said web rolls comprising a web of insulator material carried
upon a core and each of said webs of insulator material having obverse
and reverse sides and opposed side edges defining a width of said
web, said web being wider than said spring unit's transverse
dimension, each of said webs having opposed side portions and a
central portion between said side portions across said width of said
web;
passing said first and second webs of insulator material
transversely past said first and second surfaces of said spring unit,
respectively, said spring unit being oriented such that said transverse
dimension is generally perpendicular to said opposed side edges of
each of said webs;
locating said first and second webs against said first and
second surfaces, respectively, of said spring unit so that each of said opposed side edges of each of said first and second webs extend
beyond said transverse dimension of said spring unit;
folding said side portions of each of said first and second
webs around said top and bottom turns, respectively, of said coil
springs that comprise the margins of said spring unit along said spring
unit's longitudinal dimension so that said reverse side of each of said
first and second web side portions is folded back upon the respective
said first and second web center portion;
bonding said reverse sides of said side portions of each of
said first and second webs to said reverse side of said central portion
of each of respective said first and second webs, whereby said spring
unit with said first and second webs secured thereto constitutes a
bedding product; and
roll-packing said bedding product whereby said spring
units are substantially compressed.
1 3. A method of packaging plural spring units, each of said
spring units having a generally planar first surface, a generally planar
second surface, a longitudinal dimension, and a transverse dimension,
said method comprising the steps of:
providing first and second web rolls of insulator material,
each of said web rolls comprising a web of insulator material carried
upon a core, each of said webs of insulator material having obverse
and reverse sides and opposed side edges defining a width of said
web, said width being larger than said spring unit's transverse
dimension, each of said webs having opposed side portions and a
central portion between said side portions across said width of said
web;
passing said first and second webs of insulator material
transversely past said first and second surfaces of said spring unit,
respectively, said spring unit being oriented such that said transverse
dimension of said spring unit is generally perpendicular to said opposed
side edges of said webs;
locating said first and second webs against said first and
second surfaces, respectively, of said spring unit so that each of said
opposed side edges of each of said first and second webs extend
beyond said transverse dimension of said spring unit; locating said reverse side of said first web's opposed side
portions against adjacent said side portion's reverse side of said
second web;
welding said first web side portion's reverse side to said
second web side portion's reverse side, whereby said spring unit with
said first and second webs secured thereto constitutes a bedding
product; and
roll-packing said bedding product whereby said spring
units are substantially compressed.
1 4. A roll-packed bedding product comprised of a spring unit
having first and second surfaces and first and second webs of insulator
material fixedly located against said first and second surfaces,
respectively, said spring unit being roll-packed and maintained in a
compressed state when roll-packed.
EP00980999A 1999-09-15 2000-09-13 Method of packaging a spring unit Expired - Lifetime EP1272392B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08075210A EP1970309A1 (en) 1999-09-15 2000-09-13 Method of packaging a spring unit
EP08075209A EP1944238A1 (en) 1999-09-15 2000-09-13 Method of packaging a spring unit

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US39733799A 1999-09-15 1999-09-15
US397337 1999-09-15
PCT/US2000/040889 WO2001019688A1 (en) 1999-09-15 2000-09-13 Method of packaging a spring unit

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP08075210A Division EP1970309A1 (en) 1999-09-15 2000-09-13 Method of packaging a spring unit
EP08075209A Division EP1944238A1 (en) 1999-09-15 2000-09-13 Method of packaging a spring unit

Publications (3)

Publication Number Publication Date
EP1272392A1 true EP1272392A1 (en) 2003-01-08
EP1272392A4 EP1272392A4 (en) 2006-08-09
EP1272392B1 EP1272392B1 (en) 2008-05-14

Family

ID=23570796

Family Applications (3)

Application Number Title Priority Date Filing Date
EP00980999A Expired - Lifetime EP1272392B1 (en) 1999-09-15 2000-09-13 Method of packaging a spring unit
EP08075210A Withdrawn EP1970309A1 (en) 1999-09-15 2000-09-13 Method of packaging a spring unit
EP08075209A Withdrawn EP1944238A1 (en) 1999-09-15 2000-09-13 Method of packaging a spring unit

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP08075210A Withdrawn EP1970309A1 (en) 1999-09-15 2000-09-13 Method of packaging a spring unit
EP08075209A Withdrawn EP1944238A1 (en) 1999-09-15 2000-09-13 Method of packaging a spring unit

Country Status (12)

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EP1272392A4 (en) 2006-08-09
DE60038903D1 (en) 2008-06-26
US6298510B1 (en) 2001-10-09
CN1165460C (en) 2004-09-08
EP1970309A1 (en) 2008-09-17
MXPA02002889A (en) 2002-08-30
ZA200202121B (en) 2003-08-27
WO2001019688A1 (en) 2001-03-22
ES2304988T3 (en) 2008-11-01
EP1272392B1 (en) 2008-05-14
AU1818501A (en) 2001-04-17
CN1374915A (en) 2002-10-16
ATE395265T1 (en) 2008-05-15
US6357209B1 (en) 2002-03-19
EP1944238A1 (en) 2008-07-16
RU2227112C2 (en) 2004-04-20
BR0013988A (en) 2002-05-14

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